The planet Mercury may be hot, but it appears to be cooling down. That's the conclusion of a new study that looked for the kinds of features on Mercury that can form as the surfaces of planets ...

The new study also found that when Mercury starts to revolve farther from the Sun and the Sun starts to slow Mercury’s rotation, the planet rotates 1,500 feet (460 meters) ...

Mercury’s unusual rotation and oval-shaped orbit around the sun means that our star seems to quickly rise, set and rise again on some parts of the planet, and a similar phenomenon occurs at ...

The planet Mercury will soon be at its best for skywatchers on ... radar studies showed that Mercury's rotation period is 58.65 days or almost exactly two-thirds of its orbital period of 87.969 ...

The BepiColombo space mission made its first flyby of Mercury around 7:34 p.m. ET on Friday and passed within 124 miles (200 kilometers) of the planet’s surface. BepiColombo will collect science ...

Mercury, the planet closest to the Sun, has a year only 88 Earth days long. Credit: NASA Mercury spins on its axis very slowly and completes one rotation every 59 Earth days.

Mercury is not just hellishly hot but apparently covered in brimstone. A vast part of the planet is covered with dried lava – enough to bury the state of Texas under 4 miles of the stuff ...

Mercury is the closest planet to the sun and the smallest planet in our solar system.With a diameter of about 3,032 miles (4,880 kilometers), Mercury is less than half the size of Earth, which is ...

But because of its fast orbit, one Mercury year takes 88 Earth days. This means that two years on Mercury lasts for only three days. The planet's sunrise would be unusual to us on Earth. Due to its ...

Named for the fleet-footed Roman messenger god, Mercury is the closest planet to the sun, zipping around our parent star at an average of 36 million miles away. However, Mercury’s orbit is not a ...

Mercury, the speedy little planet closest to the sun, is making a special twilight appearance this month as a bright pink dot low in the sky. The show started on Feb. 8 and will continue until Feb ...